William,
Hey! Don't worry everyone starts out as a Newbie!
But When You click on the link and the description opens they tell you who the payment processor is
( i.e click-bank, click-sure, jv-zoo)
and once you find one you want to promote, go to THAT processor website and sign up for free!
(i.e clickbank.com, clicksure.com)
when you first sign-up they will ask you to create your own custom Affiliate-id
and THAT is the id you sign up with...
makes sense??